To reach Molveno you can take Motorway Brennero A22 (exit Mezzocorona) and then turn right on the National Road SS43, go through Mezzolombardo: take left at the first crossroad, to Fai della Paganella ( S.P. 237) See map.
As an alternative you can take the Trento Nord Exit and drive on the Non Valley. See map.
From Riva del Garda you can drive to Molveno along the SS 421, going through Ponte Arche. Do not take the road to Vezzano Ranzo, which many GPS indicate as an alternative. The road in Ranzo is not accessible any longer. Information on Italian Motorways
Get off the train in Trento or in Mezzocorona, along the Brenner railways. During high season these two railway stations are connected by bus to Molveno. Train timetable
Molveno can be reached by bus from Trento (last bus at 6.30 pm) or Mezzocorona. More information by calling Trentino Trasporti +39 0461 821000. You can reach Molveno also from Riva del Garda, Madonna di Campiglio, Cles, but you will need to change bus. Timetable. The closest airport is Valerio Catullo (Verona), about 130 km away from Molveno. The airport is connected by shuttle bus with the Trento railway station.